초록 ▼

The invention concerns a process for optimal operation of a slurry bubble column containing a suspension of solid particles in a liquid, characterized in that a gas phase containing the reactant(s) required for the production of the desired products is injected in the form of bubbles close to the lo

The invention concerns a process for optimal operation of a slurry bubble column containing a suspension of solid particles in a liquid, characterized in that a gas phase containing the reactant(s) required for the production of the desired products is injected in the form of bubbles close to the lower extremity of the reactor and at least a portion of the liquid fraction and optionally of the solid fraction of the suspension is recirculated, drawn off from close to one extremity of the reactor and reintroduced close to the other extremity of the reactor, with a liquid flow rate U.sub.l in the reactor which is at least equal to and preferably greater than the sedimentation rate U.sub.s of the solid particles. The invention also concerns an apparatus for optimal operation of the process. Finally, the invention concerns the use of the process and apparatus in the Fischer-Tropsch synthesis.

대표청구항 ▼

[ We claim:] [1.] An apparatus comprising:a substantially vertical reactor having an upper extremity and a lower extremity;said reactor containing an aerated suspension of at least one solid in at least one liquid, wherein, said at least one solid is at least partially formed by catalytic particles;

[ We claim:] [1.] An apparatus comprising:a substantially vertical reactor having an upper extremity and a lower extremity;said reactor containing an aerated suspension of at least one solid in at least one liquid, wherein, said at least one solid is at least partially formed by catalytic particles;said reactor comprising: a) at least one means for introducing gas close to the lower extremity of said reactor; b) at least one means for extracting gas close to the upper extremity of said reactor, c) at least one means for extracting at least a portion of the suspension; andsaid apparatus further comprising at least one means for recirculating at least a portion of non-aerated liquid fraction of said suspension to obtain a rate of circulation U.sub.l of the suspension in the reactor which is at least equal to the rate of sedimentation U.sub.s of the solid particles, wherein said means for recirculating provides natural recirculation induced by the difference in density between the aerated suspension and the recirculating non-aerated liquid portion.